They include shots of clubbers at Replay in Glasgow cavorting in the nude and pictures of people appearing to commit sex acts.

A disgusted reveller said: “It’s only a matter of time before someone has full sex for all to see — if it hasn’t happened already.”

In one image, a woman is kneeling down with her back to the camera, appearing to perform a sex act on a man standing in front of her.

Another shot shows two lads naked from the waist down, while a girl appears to be completely starkers in another.

Further sordid scenes include two female friends kissing while two men gesture to the camera, and a girl pulling her top and bra up to expose her breasts.

The most graphic of the images have been removed from the Facebook page which is open to anyone.

But a Strathclyde Police spokesman said yesterday: “We are investigating this matter and if appropriate will report the circumstances to the Procurator Fiscal and or the Licencing Authority.” Top psychologist Dr Mairead Tagg warned last night the antics put people’s safety at risk.

She said: “You are putting the message on a social networking site that young people come to this club and get so out of their face that they’re stripping off. Isn’t that going to attract predators?

“Young women need to take some responsibility for themselves.

“If you are going to behave like that, you’re the one who is going to be dead embarrassed the next day when it’s all over social networking sites. Clubs have to take responsibility for the care and welfare of their customers.

“Some of the people in the photos look really young. There are no stewards to monitor what is going on. Posting photos of drunk girls stripping off is an invitation for trouble.”

Clubs can have licences suspended instantly if police complain.

A spokesman for Glasgow’s licensing board said they had not received any complaint. No one from G1 group, who run Replay, was available for comment.

We told in May how video footage of a nude couple romping on a balcony at Level 2 nightclub in Coatbridge appeared on Twitter. DJ James Currie, who was later sacked, was heard in the video shouting: “If you sh*g her, we’ll give you £100.”